Unlikely: Zyrtec (cetirizine) is a long acting antihistamine and as such works to block allergic responses (by blocking the histamines they trigger).Your system may not tolerate the side effects which include sedation in most, or the opposite in a few, but that is not an allergy.
Answered 6/21/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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